From: Andreas Dilger Subject: Re: [PATCH 3/4][e2fsprogs] Relax group descriptor checking. Date: Fri, 3 Aug 2007 12:22:17 -0600 Message-ID: <20070803182217.GV6142@schatzie.adilger.int> References: <20070803040041.29456.31454.stgit@gara> <20070803040059.29456.55756.stgit@gara> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: "Jose R. Santos" Return-path: Received: from mail.clusterfs.com ([74.0.229.162]:40164 "EHLO mail.clusterfs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750898AbXHCSWS (ORCPT ); Fri, 3 Aug 2007 14:22:18 -0400 Content-Disposition: inline In-Reply-To: <20070803040059.29456.55756.stgit@gara> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Aug 02, 2007 23:00 -0500, Jose R. Santos wrote: > Eventually, a more thorough check would restrict bitmaps and inode > tables to be located at the beginning of a flex block group range. > Since the super block does not currently know about the number of > groups per flex group, this will do for now. As with regular block groups, it would probably be better to limit the bitmaps and inode tables to anywhere inside the flexbg instead of the start. That would allow, for example, INCOMPAT_FLEXBG to be enabled on an existing filesystem and the metadata could be moved together as space becomes available. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.